Sidney Owns a Residential Rental Property with an Adjusted Basis

Sidney owns a residential rental property with an adjusted basis of $200,000 at the beginning of the current year.The county treasurer sends Sidney a tax bill payable by December 31.The bill is for real estate property taxes of $1,200 for the current calendar year and for a $6,000 special assessment for a new sewer line.On November 1,Sidney sells the property to Donald for $225,000.As part of the sale contract,Sidney will pay the real estate taxes of $1,200 at closing and Donald agrees to pay the special assessment of $6,000 on the due date.What is Sidney's gain on the sale?

A) $19,800
B) $20,000
C) $21,000
D) $24,800
E) $29,800